Turbos, biturbos, triturbos, superchargers and the rest Which engine charging approach is best?

Aufladungskonzepte, SPA 10/15, Porsche 911 Turbo Zoom Photo credits:
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Boost and overboost: the biturbo normally squeezes 700 Nm out of the 3.8 litre direct injection engine. However, with an increase in charge pressure of a mere 0.15 bar in Sport Plus mode, 750 Nm is possible.

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